Architectural light shelf



FIG. 1 is a top perspective view of an architectural light shelf inaccordance with our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a front view thereof.

Any parts shown in broken lines form no part of the claimed design.

The ornamental design for an architectural light shelf, as shown anddescribed.